CN115846772A - Inner bore deburring device and deburring method for intersecting bore profiles - Google Patents

Abstract

An embodiment of the present invention provides an inner hole deburring device and a deburring method for cross hole contours, the inner hole deburring device includes a driving member, a floating spindle and a deburring tool, the floating spindle includes a mounting seat and a spindle body, The mounting seat is arranged at the end of the driving part, so that the floating main shaft can move along the first direction under the drive of the driving part, the main shaft body is arranged on the mounting seat and can float radially relative to the mounting seat, and the main shaft body can revolve around the main shaft The axis of the main body rotates, and the deburring tool is arranged at the end of the main shaft body. The inner hole deburring device of the embodiment of the present invention drives the deburring tool to move through the driving part and the floating main shaft. The inner hole with the curved part is used for deburring work.

Description

Bore deburring device and deburring method for intersecting hole contours

technical field

The invention relates to the field of deburring equipment, in particular to an inner hole deburring device and a deburring method for cross hole contours.

Background technique

Burrs refer to the appearance of debris and extremely fine microscopic metal particles on the surface of metal parts. The more burrs, the lower the processing quality of the metal parts. Among them, the burrs on the wall surface of the inner hole of the metal part are more difficult to remove. In the related art, a driving device or a transmission device is set on the worktable to drive the rotating shaft to rotate. A polishing sleeve is placed on the outer peripheral surface of the rotating shaft, and then the metal part is grasped and moved by the mechanical arm, so that the polishing sleeve on the rotating shaft extends into the inner hole of the metal part, and the burr on the wall surface of the inner hole is removed by the rotating polishing sleeve. However, the devices in the related art can only deburr straight holes. For inner holes with irregular shapes or curved parts, such as internal eccentric cross holes, they cannot fully remove the burrs and have dead ends.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, the embodiment of the present invention proposes a kind of inner hole deburring device, this inner hole deburring device drives the deburring tool to move through the driving part and the floating main shaft, and the floating main shaft makes the deburring tool radially float, so that the The attitude of the tool can be adjusted, so that the inner hole with irregular shape or curved part can be depunctured.

Embodiments of the invention also propose a deburring method for intersecting hole profiles.

The inner hole deburring device of the embodiment of the present invention comprises:

driver;

a floating spindle, the floating spindle includes a mounting seat and a spindle body, the mounting seat is arranged at the end of the driving member, so that the floating spindle can move along a first direction driven by the driving member, so The main shaft body is arranged on the mounting seat and can float radially relative to the mounting seat, and the main shaft body can rotate around the axis of the main shaft body;

A debunking tool, the debunking tool is arranged at the end of the main shaft body.

The inner hole deburring device of the embodiment of the present invention drives the floating main shaft and the deburring tool to move along the first direction through the driving member, so that the deburring tool can enter and exit the inner hole, and can adjust the deburring tool in the depth direction of the inner hole. The position, the floating spindle allows the debunking tool to float radially, so that the posture of the debunking tool can be adjusted, so that the debunking tool can perform debunking operations on inner holes with irregular shapes or curved parts.

In some embodiments, the radial floating range of the main shaft body is ±5°.

In some embodiments, the main shaft body can float axially relative to the mounting seat, and the axial floating range is ±8mm.

In some embodiments, the driver is a six-axis robot; and/or

The deburring tool is a rotary file.

In some embodiments, the inner hole deburring device also includes:

processing platform;

a fixing fixture, the fixing fixture is arranged on the processing platform and fixed in position relative to the processing platform;

A movable fixture is arranged on the processing platform, and the movable fixture can move toward and away from the fixed fixture relative to the processing platform.

In some embodiments, the inner hole deburring device also includes:

a slide rail, the slide rail is arranged on the processing platform;

The sliding block is arranged on the sliding rail and can slide relative to the sliding rail along the extending direction of the sliding rail, and the movable clamp is arranged on the sliding block.

In some embodiments, the inner hole deburring device further includes a plurality of positioning pins, one end of the positioning pins is used to insert the part to be processed, the fixed fixture and the movable fixture are both provided with pin holes, the The pin hole is used for installing the corresponding positioning pin.

In some embodiments, the inner hole deburring device further includes a placement frame, which is used to place a plurality of deburring knives of different sizes;

The driving member can drive the floating spindle to move between a first position and a second position,

In the first position, the floating main shaft is located on one side of the processing platform, and the deburring tool located on the floating main shaft can move along the first direction under the drive of the driving member, so that The debunking tool enters and exits the inner hole of the workpiece to be processed, and the workpiece to be processed is arranged on the processing platform and is located between the fixed fixture and the movable fixture;

In the second position, the floating spindle is located at one side of the placement frame, and the floating spindle can replace the deburring tool on the placement frame.

The deburring method for the cross-hole contour of the embodiment of the present invention utilizes the inner hole deburring device of the embodiment of the present invention, and the deburring method includes:

Obtaining the intersection hole profile at the junction of the first hole and the second hole of the workpiece to be processed, the first hole extends along the first direction, and the second hole forms an opening on the side wall surface of the first hole, The intersection hole profile includes a first part located on one side of the horizontal direction and a second part located on the other side of the horizontal direction;

Acquiring the moving trajectory of the dethorning tool, the moving trajectory includes a first trajectory and a second trajectory, the first part is processed when the dethorning tool moves along the first trajectory, and the dethorning tool moves along the machining said second portion while moving on a second trajectory;

The deburring tool on the floating main shaft adopts a positive edge ball type rotary file, driven by the driving member and the floating main shaft, the positive edge ball type rotary file moves along the first track and is positive to rotate;

The deburring tool on the floating main shaft adopts a counter-blade ball-type rotary file. Driven by the driving member and the floating main shaft, the counter-blade ball-type rotary file moves along the second trajectory and reverses. to rotate.

The deburring method for the cross hole contour of the embodiment of the present invention utilizes the inner hole deburring device of the embodiment of the present invention, first obtains the cross hole contour and the moving track of the deburring tool, and then drives the positive edge ball through the driving member and the floating spindle The type rotary file moves along the first trajectory, and drives the reverse edge ball type rotary file to move along the second trajectory to remove the burr at the intersection hole contour.

In some embodiments, before the step of obtaining the cross-hole profile of the connection between the first hole and the second hole of the workpiece, the deburring method further includes:

Constructing a space coordinate system, the origin of the space coordinate system is located on the center line of the first hole, and on the extension line where the center point of the opening extends along the second direction, and the second direction is the same as the first hole Orthogonal in one direction;

The step of obtaining the cross-hole profile at the junction between the first hole and the second hole includes:

Obtain the contour track coordinates of the cross hole contour on the space coordinate system by formula (1) and formula (2):

x ² +y ² =r ² (1)

(y+22.5) ² +z ² ＝c ² (2)

in,

x is the abscissa of the contour track of the cross hole contour;

y is the ordinate of the contour track of the cross hole contour;

z is the vertical coordinate of the contour track of the cross hole contour;

r is the radius of the first hole;

c is the radius of the second hole;

The step of obtaining the moving track of the debunking tool includes:

Obtain the moving track coordinates of the debunking tool on the space coordinate system by formula (3) to formula (11):

w ＝(R-d)×cosθ (6)

R ² =x ² +y ² +z ² (11)

in,

u is the abscissa of the moving track of the de-stabbing tool;

v is the ordinate of the moving track of the de-stabbing tool;

w is the vertical coordinate of the moving track of the debunking tool.

Description of drawings

Fig. 1 is a schematic structural view of an inner hole deburring device according to an embodiment of the present invention;

Fig. 2 is a top view of an inner hole deburring device according to an embodiment of the present invention;

Fig. 3 is a schematic structural view of the fixture in Fig. 1;

Fig. 4 is a schematic structural view of the movable fixture in Fig. 1;

Fig. 5 is a side sectional view of the workpiece to be processed in Fig. 1;

Fig. 6 is a partial front sectional view of the workpiece to be processed in Fig. 1 .

Reference signs:

1. Driving part; 2. Floating spindle; 3. De-stabbing tool; 4. Processing platform; 5. Fixed fixture; 6. Movable fixture; 7. Slide rail; 8. Slider; ; 11. Pin hole; 12. The workpiece to be processed; 13. The first hole; 14. The second hole.

Detailed ways

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The following describes an inner hole deburring device and a deburring method for intersecting hole contours according to embodiments of the invention with reference to accompanying drawings 1 to 5 .

As shown in FIGS. 1-5 , the inner hole deburring device according to the embodiment of the present invention includes a driving member 1 , a floating main shaft 2 and a deburring tool 3 .

The floating spindle 2 includes a mounting seat and a spindle body, and the mounting seat is arranged at the end of the driving member 1, so that the floating spindle 2 can move in a first direction (up and down direction as shown in FIG. 1 ) driven by the driving member 1. The main shaft body is arranged on the installation seat and can float radially relative to the installation seat, and the main shaft body can rotate around the axis of the main shaft body. Specifically, as shown in Figure 1, the mounting seat of the floating main shaft 2 is arranged at the front end of the driving member 1, the main shaft body is arranged on the mounting seat and extends downward, and there is a pneumatic radial floating mechanism connected with the main shaft body in the mounting seat, Under the action of the pneumatic radial floating mechanism, the main shaft body can radially float relative to the mounting seat, in other words, the axis of the main shaft body can be inclined relative to the center line of the mounting seat. The spindle body is also rotatable about the axis of the spindle body. The driving member 1 is used to drive the floating main shaft 2 to move at least in the up and down direction.

The deburring tool 3 is located at the end of the main shaft body. Specifically, as shown in Figure 1, the destab tool 3 extends in the up and down direction, and the upper end of the destab tool 3 is connected to the lower end of the main shaft body, and driven by the driving member 1, the destab tool 3 is carried out synchronously with the floating main shaft 2. Move up and down, so that the lower end of the de-stabbing tool 3 can enter and exit the inner hole of the workpiece 12 and change the depth position of the lower end of the de-stabbing tool 3 in the inner hole. The main shaft body is connected coaxially with the de-stabbing tool 3. Driven by the rotation of the main body, the deburring tool 3 can rotate around the axis of the dethorning tool 3 to perform dethorning processing in the inner hole. Driven by the main shaft body, radial floating can also be carried out. When the lower end of the de-stab tool 3 is located in the inner hole, the radial floating can make the de-stab tool 3 tilt relative to the axis of the inner hole, so as to adjust the de-stab tool 3 attitude, and change the position of the lower end of the de-stabbing tool 3 in the inner hole, so that the lower end of the de-stabbing tool 3 can de-stab the irregularly shaped positions, curved parts and recessed parts on the side wall of the inner hole .

The inner hole deburring device of the embodiment of the present invention drives the floating main shaft and the deburring tool to move along the first direction through the driving member, so that the deburring tool can enter and exit the inner hole, and can adjust the deburring tool in the depth direction of the inner hole. The position, the floating spindle allows the debunking tool to float radially, so that the posture of the debunking tool can be adjusted, so that the debunking tool can perform debunking operations on inner holes with irregular shapes or curved parts.

In some embodiments, the range of radial float of the spindle body is ±5°. In other words, the axis of the spindle body may be inclined from -5° to +5° relative to the center line of the mounting seat.

In some embodiments, the main shaft body can float axially relative to the mounting seat, and the axial floating range is ±8mm. Specifically, there is a pneumatic axial floating mechanism inside the mounting seat, and the main shaft body is connected with the pneumatic axial floating mechanism. Under the action of the pneumatic axial floating mechanism, the main shaft body can perform axial floating of ±8mm. Compared with the end surface of the mounting seat, there are positions 1, 2 and 3, and positions 1, 2 and 3 are arranged in sequence along the axial direction of the spindle body, where position 2 is the reference position, and position 1 is compared with position 2 Facing the end face of the mounting seat, position three is farther away from the end face of the mounting seat than position two, the lower end of the spindle body can be located at any position between position one and position three, the distance between position one and position two is 8mm, The distance between position two and position three is 8mm.

In some embodiments, the driver 1 is a six-axis robot. As shown in Fig. 1, at this time, the driving part 1 can also play the role of adjusting the posture of the destabbing tool 3, and the moving direction of the floating main shaft 2 driven by the driving part 1 is not limited to the up and down direction, and the driving part 1 can also drive the floating main shaft 2 in the vertical direction. Move horizontally.

It can be understood that the structure of the driving part is not limited to a six-axis robot. In some other embodiments, the driving part can also use a telescopic cylinder, as long as it can drive the floating main shaft to move in the up and down direction so that the lower end of the debunking tool can enter and exit the interior. hole and can adjust the depth position of the lower end of the bayonet tool in the inner hole.

In some embodiments, the deburring tool 3 is a rotary file.

In some embodiments, the inner hole deburring device of the embodiment of the present invention further includes a processing platform 4 , a fixed fixture 5 and a movable fixture 6 . The fixed fixture 5 is arranged on the processing platform 4 and its position is fixed relative to the processing platform 4 . The movable fixture 6 is arranged on the processing platform 4 , and the movable fixture 6 can move toward and away from the fixed fixture 5 relative to the processing platform 4 .

As shown in Figure 1 and Figure 2, fixed fixture 5 and movable fixture 6 are all arranged on processing platform 4, and fixed fixture 5 is fixed on the left end of processing platform 4, and movable fixture 6 is positioned at the right side of fixed fixture 5, and processing platform 4 can Move left and right to move toward and away from the fixed fixture 5, the space between the fixed fixture 5 and the movable fixture 6 is used to place the workpiece 12 to be processed, and the processing platform 4 moves to the left to clamp and fix the workpiece 12 to be processed in cooperation with the fixed fixture 5, Moving the processing platform 4 to the right can release the workpiece 12 to be processed, which is convenient for placing, taking out and replacing the workpiece 12 to be processed.

It can be understood that the inner hole deburring device may not have a processing platform, a fixed fixture and a movable fixture. In other embodiments, the workpiece to be processed is positioned through a positioning groove, or the workpiece to be processed is directly located on the conveyor belt, and the Self-gravity to avoid movement.

In some embodiments, the inner hole deburring device of the embodiment of the present invention further includes a sliding rail 7 and a sliding block 8 . The slide rail 7 is arranged on the processing platform 4 , the slide block 8 is arranged on the slide rail 7 and can slide relative to the slide rail 7 along the extending direction of the slide rail 7 , and the movable clamp 6 is arranged on the slide block 8 .

As shown in Fig. 1 and Fig. 2, slide rail 7 extends along left-right direction and is arranged on processing platform 4, and slide block 8 is arranged on slide rail 7 so that slide block 8 can slide along left-right direction, and movable fixture 6 is located at slide On block 8 and be positioned at the left end of slide block 8, so that movable clamp 6 is located at the drive of slide block 8 and moves left and right, as shown in Figure 4, for avoiding that movable clamp 6 interferes with slide rail 7, the lower end of movable clamp 6 is set There is a groove suitable for the slide rail 7 to pass through.

In some embodiments, the inner hole deburring device of the embodiment of the present invention further includes a plurality of positioning pins 10, one end of the positioning pins 10 is used to insert the part to be processed 12, and the fixed fixture 5 and the movable fixture 6 are provided with pin holes 11 , the pin hole 11 is used for installing the corresponding positioning pin 10 .

As shown in Figures 3 and 4, the fixed fixture 5 is provided with two pin holes 11 penetrating the fixed fixture 5 along the left and right directions, and the movable fixture 6 is provided with two pin holes 11 penetrating the movable fixture 6 along the left and right directions, so as to pass through the pin holes. Hole 11 installs two location pins 10 respectively on fixed fixture 5 and movable fixture 6, and two location pins 10 on the fixed fixture 5 extend to the right by fixed fixture 5, so that the two location pins 10 on the fixed fixture 5 The right end is inserted into the left end of the part to be processed 12, and the two positioning pins 10 on the movable fixture 6 are extended to the left by the movable fixture 6, and the left ends of the two positioning pins 10 on the movable fixture 6 are inserted into the right-hand side of the part to be processed 12, thereby passing The positioning pin 10 fixes the component 12 to be processed.

It can be understood that the inner hole deburring device may not have positioning pins, and in some other embodiments, the part to be processed is fixed only by the clamping force of the fixed fixture and the movable fixture.

In some embodiments, the inner hole deburring device of the embodiment of the present invention further includes a placing frame 9 for placing a plurality of deburring tools 3 of different sizes. The driving part 1 can drive the floating main shaft 2 to move between the first position and the second position. In the first position, the floating main shaft 2 is located on one side of the processing platform 4, and the deburring tool 3 on the floating main shaft 2 can be positioned on the driving part 1. Driven to move along the first direction, so that the deburring tool 3 enters and exits the inner hole of the workpiece 12 to be processed, and the workpiece 12 to be processed is arranged on the processing platform 4 and is positioned between the fixed clamp 5 and the movable clamp 6; position, the floating main shaft 2 is positioned at one side of the placement frame 9, and the floating main shaft 2 can replace the deburring tool 3 positioned on the placement frame 9.

As shown in Figures 1 and 2, the driver 1 has a base, and the placement frame 9 is located on the right side of the base, and the placement frame 9 is placed with a plurality of debunking knives 3 of different sizes, such as a plurality of debunking knives with different lengths Tool 3, the processing platform 4 is located on the front side of the base, in the first position, the floating main shaft 2 is located above the processing platform 4, and the deburring tool 3 installed on the floating main shaft 2 can move up and down under the drive of the driving member 1, Simultaneously, the driving member 1 and the floating main shaft 2 can also adjust the posture of the deburring tool 3, so that the deburring tool 3 can destab the workpiece 12 positioned on the processing platform 4. In the second position, the floating main shaft 2 is located above or on the left side of the placement frame 9. At this time, the type of the deburring tool 3 on the floating spindle 2 can be replaced. For example, when the inner hole of the workpiece 12 has a plurality of positions to be processed at different depth positions, the floating The main shaft 2 first drives the debunking tool 3 at the first position to process the position to be processed in one of the depth positions. After the processing is completed, the floating main shaft 2 moves to the second position to replace another debunking tool 3 with different lengths, and then moves back to the second position. The first position and drives the replaced deburring tool 3 to process the next position to be processed corresponding to the depth position. Preferably, the floating main shaft 2 adopts a quick release type.

It can be understood that the inner hole deburring device is not limited to having a placing frame, and in some other embodiments, when the workpiece to be processed has only one position to be processed, no placing frame is required.

As shown in Fig. 1-Fig. 5, the deburring method for the intersection hole contour of the embodiment of the present invention utilizes the inner hole deburring device of the embodiment of the present invention, and the deburring method includes obtaining the first hole 13 and the first hole 13 of the workpiece 12 to be processed. The cross-hole profile of the connecting part of the second hole 14, the first hole 13 extends along the first direction, the second hole 14 forms an opening on the side wall surface of the first hole 13, and the cross-hole profile includes a first part on one side of the horizontal direction and The second part is located on the other side in the horizontal direction. Specifically, as shown in Figure 2, the upper end surface of the workpiece 12 to be processed is provided with multiple sets of first holes 13, and multiple sets of first holes 13 are arranged at intervals along the left and right directions, as shown in Figure 5, each set of first holes 13 It includes two first holes 13 arranged at intervals in the front-to-back direction, and the two first holes 13 communicate through the second hole 14. Preferably, the first hole 13 and the second hole 14 are both round holes, and the second hole 14 Extending along the front-to-back direction and communicating eccentrically with the first hole 13, as shown in Figure 6, the second hole 14 forms an opening on the side wall surface of the first hole 13, and the connection between the first hole 13 and the second hole 14 forms a ring The cross-hole profile of the opening is shown in FIG. 6 . The cross-hole profile is separated by a dotted line in the figure into a first part on the left side of the dotted line and a second part on the right side of the dotted line.

The moving track of the destab tool 3 is obtained, the moving track includes a first track and a second track, the first part is processed when the destab tool 3 moves along the first track, and the second part is processed when the dethorn tool 3 moves along the second track. Specifically, the movement trajectory of the destab tool 3 is an irregular circle, and the cross hole contour surrounds the movement trajectory of the destab knife 3, and the movement trajectory of the destab knife 3 is also divided into two parts, the left part is the first trajectory , the right side part is the second track, the first part of the cross-hole contour is processed when the de-stabbing tool 3 moves along the first track, and the second part of the cross-hole contour is processed when the de-stab tool 3 moves along the second track.

The deburring tool 3 on the floating main shaft 2 adopts a positive edge ball rotary file. Driven by the driving member 1 and the floating main shaft 2, the positive edge ball rotary file moves along the first track and rotates forward. Specifically, the positive edge ball type rotary file on the placement frame 9 is installed on the floating main shaft 2 at the second position, and then the driving part 1 drives the floating main shaft 2 to move to the first position, and the driving part 1 and the floating main shaft 2 move to the first position. Driven, the positive-edge ball-type rotary file enters the first hole 13 and moves along the first trajectory. While moving, the positive-blade ball-type rotary file is driven by the floating main shaft 2 around the axis of the positive-blade ball-type rotary file. Rotate to remove the burrs on the first part of the intersecting hole profile. After moving along the first trajectory, the positive edge ball rotary file exits the first hole 13.

The deburring tool 3 on the floating main shaft 2 adopts a counter-blade ball-type rotary file. Driven by the driving member 1 and the floating main shaft 2, the counter-blade ball-type rotary file moves along the second track and rotates in the opposite direction. Specifically, the floating main shaft 2 is located at the second position under the drive of the driving member 1, and the reverse edge ball-type rotary file on the placement frame 9 is installed on the floating main shaft 2 at the second position, and then the driving member 1 drives the floating main shaft 2 Move to the first position, under the drive of the driving member 1 and the floating spindle 2, the counter-blade ball-type rotary file enters the first hole 13 and moves along the second track, while moving, the counter-blade ball-type rotary file Driven by the floating spindle 2, it rotates reversely around the axis of the positive-blade ball-type rotary file to remove the burrs on the second part of the cross-hole contour, and the reverse-blade ball-type rotary file exits the first hole 13 after moving along the second track.

The deburring method for the cross hole contour of the embodiment of the present invention utilizes the inner hole deburring device of the embodiment of the present invention, first obtains the cross hole contour and the moving track of the deburring tool, and then drives the positive edge ball through the driving member and the floating spindle The type rotary file moves along the first trajectory, and drives the counter-blade ball type rotary file to move along the second trajectory, so as to remove the burr at the intersection hole contour.

In some implementations, before the step of obtaining the cross-hole profile of the junction between the first hole 13 and the second hole 14 of the workpiece 12, the deburring method further includes constructing a space coordinate system, the origin of which is located at the first hole 13, and located on the extension line where the central point of the opening extends along the second direction, the second direction is orthogonal to the first direction. Specifically, the centerline of the first hole 13 extends along the vertical direction, the extension line is perpendicular to the centerline of the first hole 13 and passes through the center point of the opening, and the intersection of the extension line and the centerline of the first hole 13 is the space coordinate system origin.

The step of obtaining the intersecting hole profile at the junction of the first hole 13 and the second hole 14 includes obtaining the contour track coordinates of the intersecting hole profile on the spatial coordinate system by formula (1) and formula (2):

x ² +y ² =r ² (1)

(y+22.5) ² +z ² ＝c ² (2)

in,

x is the abscissa of the contour track of the cross hole contour;

y is the ordinate of the contour trajectory of the cross hole contour;

z is the vertical coordinate of the contour trajectory of the cross hole contour;

r is the radius of the first hole 13;

c is the radius of the second hole 14 .

Specifically, the contour trajectory coordinates of the intersection hole contour are calculated and obtained through formula (1) and formula (2). In the spatial coordinate system, the contour trajectory is formed by the connection of multiple coordinate points. Preferably, two adjacent coordinate points The abscissa differs by 0.5mm.

The step of obtaining the movement trajectory of the destab tool 3 includes obtaining the movement trajectory coordinates of the dethorn knife 3 on the space coordinate system through formula (3) to formula (11):

w ＝(R-d)×cosθ (6)

R ² =x ² +y ² +z ² (11)

in,

u is the abscissa of the moving track of the destabbing tool 3;

v is the ordinate of the moving track of the destabbing tool 3;

w is the vertical coordinate of the moving track of the debunking tool 3 .

Specifically, according to the above formula (3) to formula (11), and the spatial coordinates of a plurality of coordinate points of the contour track are calculated to get a plurality of coordinate points in the moving process of the stabbing tool 3, and a plurality of coordinates of the stabbing tool 3 The connecting line of the points forms the moving track of the debunking tool 3 . Then manually divide the moving trajectory of the de-stabbing tool 3 into a first trajectory and a second trajectory, wherein the first trajectory includes a part of a plurality of coordinate points of the de-stab tool 3, and the second trajectory includes a plurality of coordinate points of the de-stabbing tool 3 The other part of the positive edge ball rotary file moves along a part of multiple coordinate points in order to process the first part on the left side of the cross hole contour, and the reverse edge ball rotary file moves sequentially along the other part of multiple coordinate points to process the cross The second part on the right side of the hole profile, thus completing the deburring of a cross hole profile.

Since there are two second holes 14 between the two first holes 13 of each group, and the two second holes 14 are arranged at intervals along the up and down direction, after completing the deburring process to a cross hole profile, the floating The deburring tool 3 on the main shaft 2 is replaced with a longer model or a shorter model, so that the cross hole profile at another depth position in the same first hole 13 is deburred. After the two intersecting hole contours are all processed, the intersecting hole contour in the next first hole 13 is processed. Perhaps be positioned at the intersection hole profile of same depth position in all first holes 13 after completing deburring processing, then the destabbing tool 3 on the floating main shaft 2 is replaced with a longer model or a shorter model, and then all The cross hole profile at another depth position in the first hole 13 is subjected to deburring processing.

In describing the present invention, it is to be understood that the terms "center", "length", "thickness", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "axial", "radial", and "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, Unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

As used herein, the terms "one embodiment," "some embodiments," "example," "specific examples," or "some examples" mean specific features, structures, materials, or features described in connection with the embodiment or example. A feature is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the above-mentioned embodiments have been shown and described, it can be understood that the above-mentioned embodiments are exemplary, and should not be construed as limitations on the present invention. Changes, modifications, substitutions and variations made by those skilled in the art to the above-mentioned embodiments All within the protection scope of the present invention.

Claims (10)

1. An inner bore deburring apparatus comprising:

a driver (1);

the floating main shaft (2), the floating main shaft (2) comprises a mounting seat and a main shaft body, the mounting seat is arranged at the end part of the driving part (1) so that the floating main shaft (2) can move along a first direction under the driving of the driving part (1), the main shaft body is arranged on the mounting seat and can float radially relative to the mounting seat, and the main shaft body can rotate around the axis of the main shaft body;

the deburring tool (3) is arranged at the end part of the main shaft body.

2. The internal bore deburring apparatus of claim 1, wherein the range of radial float of said spindle body is ± 5 °.

3. An inner bore deburring apparatus as claimed in claim 1 wherein said spindle body is axially floatable relative to said mounting block over a range of ± 8mm.

4. The inner bore deburring device of claim 1 wherein said drive member (1) is a six axis robot; and/or

The deburring cutter (3) is a rotary file.

5. The bore deburring apparatus of any one of claims 1-4, further comprising:

a processing platform (4);

the fixed clamp (5) is arranged on the machining platform (4) and is fixed relative to the machining platform (4);

the movable clamp (6) is arranged on the machining platform (4), and the movable clamp (6) can move towards and away from the fixed clamp (5) relative to the machining platform (4).

6. The bore deburring apparatus of claim 5, further comprising:

the sliding rail (7) is arranged on the machining platform (4);

the sliding block (8) is arranged on the sliding rail (7) and can slide relative to the sliding rail (7) along the extending direction of the sliding rail (7), and the movable clamp (6) is arranged on the sliding block (8).

7. The inner hole deburring device according to claim 5, further comprising a plurality of positioning pins (10), wherein one end of each positioning pin (10) is used for inserting a part (12) to be machined, and each of the fixed clamp (5) and the movable clamp (6) is provided with a pin hole (11), and the pin holes (11) are used for installing the corresponding positioning pins (10).

8. The inner bore deburring device of claim 5, further comprising a rack (9), said rack (9) being adapted to hold a plurality of deburring tools (3) of different sizes;

the driving piece (1) can drive the floating main shaft (2) to move between a first position and a second position,

in the first position, the floating main shaft (2) is positioned at one side of the processing platform (4), the deburring cutter (3) positioned on the floating main shaft (2) can move along the first direction under the driving of the driving piece (1) so as to enable the deburring cutter (3) to enter and exit an inner hole of a workpiece to be processed (12), and the workpiece to be processed (12) is arranged on the processing platform (4) and positioned between the fixed clamp (5) and the movable clamp (6);

and at the second position, the floating main shaft (2) is positioned on one side of the placing frame (9), and the floating main shaft (2) can replace the deburring tool (3) positioned on the placing frame (9).

9. A deburring method for intersecting hole profiles, characterized in that with the inner hole deburring apparatus of any of claims 1-7, said deburring method comprises:

acquiring a cross hole profile at which a first hole (13) and a second hole (14) of a member (12) to be machined communicate, the first hole (13) extending in the first direction, the second hole (14) forming an opening in a side wall surface of the first hole (13), the cross hole profile including a first portion on one side in a horizontal direction and a second portion on the other side in the horizontal direction;

obtaining a moving track of the deburring cutter (3), wherein the moving track comprises a first track and a second track, the deburring cutter (3) processes the first part when moving along the first track, and the deburring cutter (3) processes the second part when moving along the second track;

the deburring tool (3) on the floating main shaft (2) adopts a regular-edge spherical rotary file, and the regular-edge spherical rotary file moves along the first track and rotates positively under the driving of the driving piece (1) and the floating main shaft (2);

the deburring cutter (3) on the floating main shaft (2) adopts a reversed-blade spherical rotary file, and the reversed-blade spherical rotary file moves along the second track and rotates reversely under the driving of the driving piece (1) and the floating main shaft (2).

10. The deburring method for intersecting hole profiles as claimed in claim 9, characterized in that, prior to said step of taking an intersecting hole profile where a first hole (13) and a second hole (14) of a member to be machined (12) communicate, said deburring method further comprises:

constructing a space coordinate system, wherein the origin of the space coordinate system is positioned on the central line of the first hole (13) and on an extension line of the central point of the opening along a second direction, and the second direction is orthogonal to the first direction;

the step of obtaining a cross-bore profile where the first bore (13) and the second bore (14) communicate comprises:

acquiring contour trajectory coordinates of the intersecting hole contour on the space coordinate system through formula (1) and formula (2):

x ² +y ² ＝r ² (1)

(y+22.5) ² +z ² ＝c ² (2)

wherein,

x is the abscissa of the profile locus of the intersecting hole profile;

y is the ordinate of the profile locus of the cross-hole profile;

z is the vertical coordinate of the contour trajectory of the intersecting hole contour;

r is the radius of the first hole (13);

c is the radius of the second hole (14);

the step of obtaining the moving track of the deburring cutter (3) comprises the following steps:

obtaining the moving track coordinates of the deburring tool (3) on the space coordinate system through the formulas (3) to (11):

w＝(R-d)×cosθ (6)

R ² ＝x ² +y ² +z ² (11)

wherein,

u is the abscissa of the moving track of the deburring cutter (3);

v is the ordinate of the moving track of the deburring cutter (3);

and w is a vertical coordinate of the moving track of the deburring cutter (3).

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